| 摘要 |
<p>In accordance with the invention, the bobbin holding member (20, 40, 60, 80) which magnetically adheres is installed in the bobbin case holder (24) which houses the bobbin (25). With this constitution, the bobbin (25) can be securely retained in the bobbin case holder (24) without allowing the bobbin (25) to come off the bobbin case holder (24), during sewing operation. Also because the bobbin holding member (20, 40, 60, 80) is installed in the bobbin case holder (24) freely detachably, the bobbin (25) can be replaced easily resulting improvement of the efficiency of sewing work. <IMAGE></p> |
